Question

Why is the sun visible for more than 24 hours during Dakshinayan in the region between the Antarctic Circle and the South Pole?

Answer 1

1. Sunrays are never perpendicular to any of the parallels between the Antarctic Circle and the South Pole.
2. In the period from 23rd September to 21st March, the region between the Antarctic Circle and the South Pole faces the sun for 24 hours or longer. Therefore, the sun is visible for more than 24 hours during Dakshinayan in the region between the Antarctic Circle and the South Pole.